Sigma laser particle counter is a cleanroom airborne particle counter that can accurately detect and calculate the number of different size particles in the air per unit volume. The device can simultaneously output the particle number of 5 channels of >0.3μm, >0.5μm, >1.0μm, >5.0μm, >10μm in pcs/28.3L or pcs/m³. The screen can real time display the monitoring data, cleanroom ISO14644-1 2015 grade and alarm once the particle quantity exceeds the set threshold. The touch screen also supports setting the output unit, display channel, concentration alarm threshold, coefficient, language, work time, MQTT, etc.

Features
● Real-time output particle quantities of 0.3μm, 0.5μm, 1.0μm, 5.0μm, 10μm in pcs/28.3L or pcs/m³.
● Sound and light alarm once particle quantity exceeds the set threshold.
● ModBus and MQTT communication protocols available.
● Calibration coefficient correction available against standard equipment.
● Real-time display cleanroom ISO 14644-1 grade level.
● Output units switchable between pcs/28.3L and pcs/m³.
● Constant flow gas sampling system to ensure stable sampling.
● Industrial grade laser for high reliability.

Specifications
Operating principle Laser scattering
Measurement range 0~1,000,000 pcs/ 28.3L
Output channels >0.3μm, >0.5μm, >1.0μm, >5.0μm, >10μm
Count efficiency 50%@≥0.3μm, 100%@≥0.5μm
Condition: 25±2℃, 50±10%RH, calibration instrument Lighthouse 3100
Time to first reading ≤ 8 seconds
Data refresh time 1 second
Working condition 0°C ~ 45°C, 0 ~ 95%RH (Non-condensing)
Storage condition -20°C ~ 60°C, 0 ~ 95%RH (Non-condensing)
Operating voltage DC 24V±15%
Average operating current ≤3A
Communication interface RS485(Standard), RJ45(Standard)
Life span ≥3 years
Sampling flow rate 28.3L/min (1CFM)
External sampling tube Inner diameter: ф10mm Length: ≤3m
Work mode Adjustable(default: work 2 minutes and sleep 28 minutes)
Display 3.5-inch color touch screen

Applications
In medicine, electronics, food, aerospace, bio-engineering, precision processing and other fields, the ambient air in the relevant production process needs to achieve high cleanliness and meet the relevant industry standards.
Compared with traditional handheld particle counter applications, clean room online monitoring can achieve intelligent control without manual intervention; it can cover the entire production process and reduce pollution risks.